> The technology is insufficient for the task, and it will never get better.

This is very true. But I don't think it is a problem with technology.

It is just that you cannot really have a valuable insight by putting a 10000 idiots in a room and have them argue it out. In other words, you cannot replace one intelligent man with a 10000 idiots, hence the failure of HN and similar forums.

These things are only good for sharing interesting things, so the best way to use is to just use posted links, and never to engage in discussion.